55124666642155 has 16 divisors (see below), whose sum is σ = 72166027193568. Its totient is φ = 40089095968000.

The previous prime is 55124666642093. The next prime is 55124666642219.

55124666642155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55124666642155 - 2⁴³ = 46328573619947 is a prime.

It is a super-4 number, since 4×55124666642155⁴ (a number of 56 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55124666642155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18215986 + ... + 21025495.

It is an arithmetic number, because the mean of its divisors is an integer number (4510376699598).

Almost surely, 2^{55124666642155} is an apocalyptic number.

55124666642155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55124666642155 is a deficient number, since it is larger than the sum of its proper divisors (17041360551413).

55124666642155 is a wasteful number, since it uses less digits than its factorization.

55124666642155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39267038.

The product of its digits is 51840000, while the sum is 58.

The spelling of 55124666642155 in words is "fifty-five trillion, one hundred twenty-four billion, six hundred sixty-six million, six hundred forty-two thousand, one hundred fifty-five".